arXiv subjects

E. E. Bowen

Publications and source records attributed to E. E. Bowen.

2 recordsLinked to original sources

arXiv2019

Design and performance of the LHCb trigger and full real-time reconstruction in Run 2 of the LHC

The LHCb collaboration has redesigned its trigger to enable the full offline detector reconstruction to be performed in real time. Together with the real-time alignment and calibration of the detector, and a software infrastructure to make persistent the high-level physics objects produced during real-time processing, this redesign enabled the widespread deployment of real-time analysis during Run 2. We describe the design of the Run 2 trigger and real-time reconstruction, and present data-driven performance measurements for a representative sample of LHCb's physics programme.

hep-ex↗

arXiv2012

Differential branching fraction and angular analysis of the $B^{+} \rightarrow K^{+}μ^{+}μ^{-}$ decay

The angular distribution and differential branching fraction of the decay $B^{+} \rightarrow K^{+}μ^{+}μ^{-}$ are studied with a dataset corresponding to $1.0\,\mathrm{fb}^{-1}$ of integrated luminosity, collected by the LHCb experiment. The angular distribution is measured in bins of dimuon invariant mass squared and found to be consistent with Standard Model expectations. Integrating the differential branching fraction over the full dimuon invariant mass range yields a total branching fraction of $\mathcal{B}(B^{+} \rightarrow K^{+}μ^{+}μ^{-}) = (4.36 \pm 0.15 \pm 0.18)\times 10^{-7}$. These measurements are the most precise to date of the $B^{+} \rightarrow K^{+}μ^{+}μ^{-}$ decay.

hep-ex↗